iPhone Apps Crashed Worldwide on September 29 as Google Firebase Failed

By Danny Kontos

September 30, 2026

10:12 AM

3 min read

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Key Points

iPhone apps crashed globally on September 29 due to Google Firebase Analytics error.

Google deployed a fix within two hours without requiring app updates.

The outage affected thousands of apps across all categories in Japan and worldwide.

Developers using Firebase had no way to prevent the crash on their end.

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Thousands of iPhone apps crashed starting around 9:00 AM on September 29 after Google’s Firebase Analytics service sent an incorrectly formatted data payload to app SDKs. The outage affected apps across all categories globally, including in Japan, but Google fully deployed a fix by 7:52 PM Pacific Time the same day. No app updates were required.

What happened to iPhone apps on September 29

Beginning around 9:00 AM on September 29, users reported widespread app crashes across iOS devices. Users posted on social media that apps would open briefly then force-close to the home screen within seconds. The problem was not limited to one app or category; reports showed crashes across various app types, from payment apps like Air Pay to productivity tools. JX Communications’ FASTALERT risk service confirmed the anomaly starting at 9:30 AM on September 29.

Google Firebase Analytics was the root cause

The crashes stemmed from Google’s Firebase platform, a backend service used by thousands of app developers worldwide. Google confirmed the issue was an incorrectly formatted payload in Firebase Analytics for iOS. Firebase provides analytics, authentication, databases, and push notifications. The problem occurred specifically in the Analytics module’s initialization process, which developers cannot control or patch themselves.

Google fixed the issue in under two hours

Nick Cooke, a Google software engineer, posted the timeline on GitHub. The crash issue started at 5:41 PM US Pacific Time on September 28 (early morning September 29 in Japan). Google fully rolled out a fix by 7:52 PM Pacific Time the same day. Due to caching behavior, some app instances continued crashing for up to four hours after the rollout. No SDK updates were required from developers or users; the fix applied automatically server-side.

Why this matters for app users and developers

The outage highlighted how a single point of failure at a major infrastructure provider can disrupt thousands of apps simultaneously. Developers using Firebase had no way to prevent or mitigate the crash on their end. For users in Japan and globally, the incident caused temporary frustration but resolved automatically without manual intervention or app reinstalls.

Final Thoughts

Google’s Firebase outage on September 29 crashed thousands of iPhone apps for hours, but the company fixed the backend issue quickly without requiring user action. The incident underscores the dependency developers have on third-party infrastructure platforms.

FAQs

Why did so many iPhone apps crash on September 29?

Google Firebase Analytics sent an incorrectly formatted data payload to app SDKs, causing crashes across thousands of apps using the service.

Did I need to update my apps to fix the crashes?

No. Google deployed a server-side fix that applied automatically. No app updates or reinstalls were required.

Which apps were affected by the Firebase crash?

All apps using Google Firebase Analytics were affected, spanning payment apps, productivity tools, and other categories across iOS globally.

How long did the iPhone app crashes last?

The main outage lasted under two hours, though caching caused some crashes to continue for up to four hours after Google’s fix rolled out.

Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.

About Author

Danny Kontos

Co Founder

Danny Kontos has been a stock investor since 2007 and co-founded Meyka in 2023. He keeps a small, focused portfolio and only moves when the numbers are hard to argue with. He has waited years on a single position before. Before Meyka, he ran a web hosting company and a mortgage lending platform, so he knows what a well-run business actually looks like under the hood. This article did not come from a news cycle. It came from someone who has been watching this space for a long time.